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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine> Max valve lift (chevy)
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Topic Review (Newest First)
06-24-2002 12:02 PM
americanfreedoms Thanks,
I was hopeing to get by with the factory heads until I could spring for a set of Vortec's. And I did not want to have to buy another cam just to run the factory heads.

06-24-2002 10:48 AM
wrenchturner You should be safe up to around 500 lift with out mods.but it always a good Ideal to check clearances,a liitle extra time but Id rather be safe than sorry,PS Ive never had any problems up to 510 lift on a small block chevy.just a opinion (wrenchturner) I agree with 78 monte change your springs and seals

[ June 24, 2002: Message edited by: wrenchturner ]</p>
06-22-2002 10:37 PM
78 monte You should always put valve springs that match the cam on the heads.And change valve seals wile your there. I don't think .467 lift would give you a problem otherwise.Check piston/valve clearance & coil bind.

[ June 23, 2002: Message edited by: 78 monte ]</p>
06-22-2002 09:09 PM
Max valve lift (chevy)

I'm in the process of rebuilding a Chevy crate 350 (made in Mexico). I'm fairly confident the heads are 76cc with 1.94 intakes. I was considering installing a Crane cam with a 278 degree advertised duration and a .467 lift . Will this stock heads handle this lift without any modifications?


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